From 0d2ae84081500168fb1596c2bc6198b3a67b86d6 Mon Sep 17 00:00:00 2001
From: chriseth <chris@ethereum.org>
Date: Thu, 4 Apr 2019 17:48:02 +0200
Subject: [PATCH] Use move semantics.

---
 libyul/AsmScope.cpp       | 4 ++--
 libyul/AsmScope.h         | 4 ++--
 libyul/AsmScopeFiller.cpp | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/libyul/AsmScope.cpp b/libyul/AsmScope.cpp
index b71f2367e..252361d27 100644
--- a/libyul/AsmScope.cpp
+++ b/libyul/AsmScope.cpp
@@ -42,11 +42,11 @@ bool Scope::registerVariable(YulString _name, YulType const& _type)
 	return true;
 }
 
-bool Scope::registerFunction(YulString _name, std::vector<YulType> const& _arguments, std::vector<YulType> const& _returns)
+bool Scope::registerFunction(YulString _name, std::vector<YulType> _arguments, std::vector<YulType> _returns)
 {
 	if (exists(_name))
 		return false;
-	identifiers[_name] = Function{_arguments, _returns};
+	identifiers[_name] = Function{std::move(_arguments), std::move(_returns)};
 	return true;
 }
 
diff --git a/libyul/AsmScope.h b/libyul/AsmScope.h
index 2a8ef49e8..f6c7fe59a 100644
--- a/libyul/AsmScope.h
+++ b/libyul/AsmScope.h
@@ -56,8 +56,8 @@ struct Scope
 	bool registerLabel(YulString _name);
 	bool registerFunction(
 		YulString _name,
-		std::vector<YulType> const& _arguments,
-		std::vector<YulType> const& _returns
+		std::vector<YulType> _arguments,
+		std::vector<YulType> _returns
 	);
 
 	/// Looks up the identifier in this or super scopes and returns a valid pointer if found
diff --git a/libyul/AsmScopeFiller.cpp b/libyul/AsmScopeFiller.cpp
index 9156e7e02..1706b147d 100644
--- a/libyul/AsmScopeFiller.cpp
+++ b/libyul/AsmScopeFiller.cpp
@@ -170,7 +170,7 @@ bool ScopeFiller::registerFunction(FunctionDefinition const& _funDef)
 	vector<Scope::YulType> returns;
 	for (auto const& _return: _funDef.returnVariables)
 		returns.emplace_back(_return.type.str());
-	if (!m_currentScope->registerFunction(_funDef.name, arguments, returns))
+	if (!m_currentScope->registerFunction(_funDef.name, std::move(arguments), std::move(returns)))
 	{
 		//@TODO secondary location
 		m_errorReporter.declarationError(